Home / 1,330,721.69-1,996,275.21-419,594.90

Finding the Fourth Proportional to 1,330,721.69, 1,996,275.21 and 419,594.90

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Solution

The fourth proportional to 1,330,721.69, 1,996,275.21 and 419,594.90 is: 629,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,721.69 : 1,996,275.21 = 419,594.90 : x
  2. Step 2: Convert to fraction form
    1,330,721.69/1,996,275.21 = 419,594.90/x
  3. Step 3: Cross multiply
    1,330,721.69x = 1,996,275.21 × 419,594.90
  4. Step 4: Simplify right side
    1,330,721.69x = 837,626,895,268.34
  5. Step 5: Solve for x
    x = 837,626,895,268.34/1,330,721.69
  6. Step 6: Final answer
    x = 629,453.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.